Cultivator



(No Model.) 2 sheets-sheet- 1.

A. HALL.

QULTIVATOR. No. 808,765. Patented Dec. 2, 1884 N, PETERS, Phule-mho nlwr. Wailvillgkm, u. c.

(No Model.) b 2 Sheets=.Sheet-..2.

' A. HALL.

GULTIVATOR. No. 308,765. Patented Dec. 2, 1884.

time TATES ATENT FFICE.

ASA HALL, OF ROCKFORD, ILLINOIS.

CULTIVATO R.

SPECIFICATION forming part of Letters Patent No. 308,765, dated December2, 1884.

Application filed March 25, 1884.

To all whom it may concern:

Be it known that I, Asa HALL, a citizen of the United States, residingin the city of Rock-, ford, county of Winnebago, and State of Illinois,have invented a new and useful Improvement in Cultivators, of which thefollowingis a specification.

This invention relates to that class of cultivators known as combinedriding and walking straddle-row cultivators. Its object is to regulatethe running depth of the shovels, when employed either as a riding orwalking cultivator, and vary such running depth to any practical degree;to enable the operator, by means of his feet, to control the verticalmovements of the shovel-beams when used as a riding-cultivator, and toenable the operator, by means of ahand-lever, to control the verticalmovements of the shovel-beams when used as a walking-cultivator, all ofwhich is accomplished by means of a system of levers, to be hereinaftermore fully described.

In the accompanying drawings, Figure 1 is a side elevation of acultivator embodying my invention, and in which portions 'are brokenaway to more clearly show my improvements. Fig. 2 is a rear elevation ofthe raising and lowering mechanism. Fig. 3 is a plan view of the raisingand lowering mechanism; and Fig. 4 is an isometrical representation ofthe compound levers.

The axle-tree in this instance is produced from channel-bars a, placedside by side, having their end portions, 12, curved downward. Theseclown-curving end portions, b, of the channel-bars embrace the upwardand inward curving arm 0 of the axle-arn1 d, which is fitted to receivethe carrying-wheel A, to re volve thereon in the usual manner.

At B is represented a tonguehaving its rear end fixed centrally to theaxle-tree, from which it extends forward centrally, and its rear portionis also connected with the axle-tree by means of horizontal diagonalbraces e, to support the parts in their relative position.

At 0 is represented a draft-bar of the usual crank form, having thecenter of its crowning portion fixed to the under side of the tongue ata point a suitable distance forward of the axletree. The horizontaldraft portions f, ex-

(Xo model.)

tending laterally from the lower ends of the vertical arms 9 of thedraft-bar, are supported to resist the draft-strain by means of suitablebraces, h, connecting it with the axle-tree and the tongue. I

At D are represented shovel-beams, produced from suitable bar material,having their rear ends curved, and shovels fixed thereto in theusualmanner. The forward ends of these beams have a suitable hinge-jointconnection with the horizontal draft-arm f of the draft-bar, to permitof a free lateral and vertical movement of their rear ends. These beamsare also fitted with handles E, for the purpose of controllingthemovements of the shovels when the machine is employed as awalking-cultivator.

At F is represented a seat mounted upon the supports G, extendingforward over the axle-tree, and their forward ends are pivoted at '13 tothe tongue forward of the axle-tree in such a manner as to permit theseat to be turned forward on the tongue when the machine is employed asa walking-cultivator, and will be supported in the position shown inFig. 1 when the machine is used as a riding-cultivator. These severalparts, in their main features, are substantially such as are now in use,and are to be found in the trade; but in their application differencesof mechanical construction will befound by which -I produce an improvedmachine.

At His represented a segment-formed sawtoothed ratchet having its footportion fitted to embrace the channelbars of the axle-tree, to whichthey are fixed by means of a stapleformed stirrup, k, passed through thefoot portion of the ratchet, and its screw-threaded arms depend, passingbetween the channelbars and receive screw-nuts l, by means of which theratchets are firmly fixed to the axletree. These ratchets H are producedin double form of like segment-bars m, suitably separated to receive thedouble levers between them.

At a is represented an adjusting and holding lever having its foot endplaced between the segment-ratchets, and pivoted thereto at a point, 0,concentric with the segments. This adjusting and holding lever isprovided with a spring-actuated pawl, p, pivoted to the lever in suchposition. thereon that its free end will engage the teeth of theratchets. The springactuated pawl 10 is connected to the thumblever 12,pivoted to the hand end of the adjusting and holding lever 02, by meansof a link, 19', in such a manner that the operator can disengage thepawl from the teeth of the ratchet to vary the position of the leverrela tively with the ratchets.

At K is represented a foot-lever employed to lift the shovel-beams toraise the shovels thereto attached from the ground. This footlever K isof the peculiar curved and bent form (shown in the drawings) to fit itto enter between the like segment-bars of the ratchets and adapt it tothe purpose intended. This foot-lever has a pivotal connection at 1 withthe adjusting and holding lever 'n in such a manner as to vibratebetween the like segment-bars m.

At 8 is represented a stop of stud-pin form projecting from the side ofthe adjusting and holding lever in position to limit'the vibration ofthe foot-lever in its upward direction.

'The forward arm, 2, of the foot-lever is provided with a hook, t, toreceive the links of a chain, t, which connects it with the shovelbeamsrearward of their hinge-joint connection with the draft-bar in such amanner that the vibrations of the foot-lever will operate to raise orlower the rear end of the shovelbeams. The depending rear arm, u, of thefoot-lever is provided with an inwardturned pedal'arm, u, adapted toreceive the foot of the operator mounted in the seat, which whendepressed will operate to vibrate the lever on its pivotal connectionand lift the shovelbeams.

In the drawings I have represented but a portion of the axle-tree, oneaxle-arm, one carrying-wheel, shovel-beams for but one side, one doubleratchet with its lever appliances, all of which will be required inpairs to produce a complete straddle-row machine, and other parts, notherein shown or described,

necessary to produce a complete combined walking and riding straddle-rowcultivator, may be any of the known parts capable of use in connectionwith my improvements.

From the foregoing it will be seen that when the parts are adjusted asrepresentedin Fig. 1 the running depth ofthe shovels will be limited bymeans of the foot-lever engaging the studstop s but by means of theadjusting and holding lever and its pawl-connection with the ratchetmechanism the running depth of the shovels may be varied to any extentwithin the limits of the devices by the forward or rearward adjustmentof the adjusting and holding lever. It will further be noticed that inany adj ustment to limit the running depth of the shovels the foot-leverwill be free to vibrate for the purpose of elevating the shovels, asshown in the dotted lines, to carry them when required. It will stillfurther be noticed that if the adj usting-lever is carried rearwarduntil the stud-stop engages the foot-leverin its dotted position it willoperate to hold the shovels elevated without the aid of the feet of theoperator. In this instance I have employed a double ratchet, whichconstruction I prefer, but evidently substantially the same results maybe obtained in the employment of a single ratchet and still be withinthe scope of my invention. v

I claim as my invention 1. The combination, with a segment-ratchet, ofan adjusting and holding lever, a foot-lever pivoted thereto and adaptedto vibrate inde pendently of said adjusting-lever, and a stop device forlimiting the foot-lever, substantially as set forth.

2. The combination, with the shovel-beam and with a segment-ratchet, ofan adjusting lever, and a foot-lever pivoted upon said adjusting-leverand formed with a hook at its forward end and a treadle at its rear end,and a stop device and chain, substantially as set forth.

ASA HALL.

\Vitnesses: \VILLIAM MoGREGoR, A. O. BEHEL.

